Basics of signaling describes the requirement of signaling system.  Principles of interlocking decides the safety features

In earlier modules you studied various concepts, building the signaling logic. Either it is relay interlocking or electronic interlocking.

Track circuit is one of the oldest methods of track detecting devices. Even in today’s modern signaling systems, track circuits are adopted.

Ensuring safety of trains is the utmost priority of Signaling. Many systems are introduced to achieve these feet.

Signaling system ensures safety of trains. The safety is assured through an “interlocking process”. These principles called as “Essentials of Interlocking”

Any system requires a presentation and documentations. The signaling drawings are not an exception.

Signaling is a developing technology. The travel has taken from mechanical signaling to present metro technology.

Railway globally are switching over to pollution less transportation. On Indian Railway more than 50% route kilometer is provided with Electrification.

Any system requires a presentation. The signaling drawings are not an exception. Earlier the related drawings and tables were hand drawn.

With the growing technology in signaling interlocking process and systems, it becomes mandatory to verify and validate the process of interlocking.

Railway is a growing industry, globally. Every system and equipment engaged in train running needs to be revamped.

Table of control or Control table is a heart of the signaling system. Irrespective of type of interlocking, maybe it is,

Interlocking is a process. It can be achieved mechanically, electro-mechanically, relays or electronically.

Power supply for any system is like heart of the system. With the introduction of new technologies power supply plays an important role.